1813027028 has 6 divisors (see below), whose sum is σ = 3172797306. Its totient is φ = 906513512.

The previous prime is 1813027019. The next prime is 1813027037. The reversal of 1813027028 is 8207203181.

It is an interprime number because it is at equal distance from previous prime (1813027019) and next prime (1813027037).

It can be written as a sum of positive squares in only one way, i.e., 991746064 + 821280964 = 31492^2 + 28658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1813026985 and 1813027003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226628375 + ... + 226628382.

It is an arithmetic number, because the mean of its divisors is an integer number (528799551).

Almost surely, 2^1813027028 is an apocalyptic number.

It is an amenable number.

1813027028 is a deficient number, since it is larger than the sum of its proper divisors (1359770278).

1813027028 is a wasteful number, since it uses less digits than its factorization.

1813027028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453256761 (or 453256759 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1813027028 is about 42579.6550948924. The cubic root of 1813027028 is about 1219.3679042188.

The spelling of 1813027028 in words is "one billion, eight hundred thirteen million, twenty-seven thousand, twenty-eight".